25th November 2019

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12

How is earthquake size measured?

The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. For all other earthquakes, the moment magnitude scale is a more accurate measure of the earthquake size.

Similarly, it is asked, how do scientists measure an earthquake?

The Richter scale was invented, logically enough, in the 1930s by Dr. Charles Richter, a seismologist at the California Institute of Technology. It is a measure of the largest seismic wave recorded on a particular kind of seismograph located 100 kilometers (about 62 miles) from the epicenter of the earthquake.

How do you measure an earthquake for kids?

Scientists use seismic waves to measure how big an earthquake is. They use a device called a seismograph to measure the size of the waves. To tell the strength of an earthquake scientists use a scale called the Moment Magnitude Scale or MMS (it used to be called the Richter scale).
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